Arduino Uno: Golden Retriever
Well-loved and ubiquitous, if not a little pricey. You see these everywhere.
Arduino Mega: Alaskan Malamute
Probably a little bigger than you need for your purposes, but they look darn good. Won’t fit in a standard project housing.
Arduino Esplora: Border Collie
Always up for a good romp. Like to play. Also come with onboard sensors.
LilyPad Arduino: Chihuahua
Some people like to use these as fashion accessories. Fit quite nicely in a purse.
LightBlue Bean: Pomeranian
Good communications skills. Come in a small form factor.
LightBlue Bean+: Beagle
Good communications skills. Come in a slightly larger form factor.
Not very smart, but they’re darn cute and you see a lot of them around.
Moteino: German Shepard
You can hear their bark for miles, with some with antenna tweaks.
Cortex M0: Shetland Sheepdog
Smarter than all the other dogs, but no one seems to have any.
An enigma to the majority of the human race. Just stick with dogs.